1 files changed, 124 insertions, 0 deletions
diff --git a/framework/src/onos/incubator/rpc/src/main/java/org/onosproject/incubator/rpc/impl/LocalRemoteServiceProvider.java b/framework/src/onos/incubator/rpc/src/main/java/org/onosproject/incubator/rpc/impl/LocalRemoteServiceProvider.java
new file mode 100644
index 00000000..d38248ab
--- /dev/null
+++ b/framework/src/onos/incubator/rpc/src/main/java/org/onosproject/incubator/rpc/impl/LocalRemoteServiceProvider.java
@@ -0,0 +1,124 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.incubator.rpc.impl;
+
+import static com.google.common.base.Preconditions.checkArgument;
+
+import java.net.URI;
+import java.util.Map;
+import java.util.Objects;
+import java.util.concurrent.ConcurrentHashMap;
+
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.onlab.osgi.DefaultServiceDirectory;
+import org.onlab.osgi.ServiceDirectory;
+import org.onosproject.incubator.rpc.RemoteServiceContext;
+import org.onosproject.incubator.rpc.RemoteServiceContextProvider;
+import org.onosproject.incubator.rpc.RemoteServiceContextProviderService;
+import org.onosproject.incubator.rpc.RemoteServiceProviderRegistry;
+import org.onosproject.net.provider.ProviderId;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.annotations.Beta;
+
+/**
+ * Sample implementation of RemoteServiceContextProvider.
+ *
+ * Scheme: "local", calling corresponding local service on request.
+ * Only expected for testing until real RPC implementation is ready.
+ *
+ * Note: This is expected to be removed or separated out as separate bundle
+ * once other RPC implementaion became available.
+ */
+@Beta
+@Component(immediate = true)
+public class LocalRemoteServiceProvider implements RemoteServiceContextProvider {
+
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    private RemoteServiceContext theOne = new LocalServiceContext();
+
+    private static final ProviderId PID = new ProviderId("local", "org.onosproject.rpc.provider.local");
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected RemoteServiceProviderRegistry rpcRegistry;
+
+    private final Map<Class<? extends Object>, Object> services = new ConcurrentHashMap<>();
+
+    private RemoteServiceContextProviderService providerService;
+
+    @Activate
+    protected void activate() {
+
+        services.put(SomeOtherService.class, new SomeOtherServiceImpl());
+
+        providerService = rpcRegistry.register(this);
+        log.info("Started");
+    }
+
+    @Deactivate
+    protected void deactivate() {
+        rpcRegistry.unregister(this);
+        log.info("Stopped");
+    }
+
+    @Override
+    public ProviderId id() {
+        return PID;
+    }
+
+    @Override
+    public RemoteServiceContext get(URI uri) {
+        checkArgument(Objects.equals(uri.getScheme(), "local"));
+        return theOne;
+    }
+
+    private final class LocalServiceContext implements RemoteServiceContext {
+
+        private final ServiceDirectory directory = new DefaultServiceDirectory();
+
+        @Override
+        public <T> T get(Class<T> serviceClass) {
+            @SuppressWarnings("unchecked")
+            T service = (T) services.get(serviceClass);
+            if (service != null) {
+                return service;
+            }
+            // look up OSGi services on this host.
+            // provided to unblock development depending on RPC.
+            return directory.get(serviceClass);
+        }
+    }
+
+    // Service provided by RPC can be non-OSGi Service
+    public static interface SomeOtherService {
+        String hello();
+    }
+
+    public static class SomeOtherServiceImpl implements SomeOtherService {
+
+        @Override
+        public String hello() {
+            return "Goodbye";
+        }
+    }
+
+}